cjo25
Summary and figures of the currently available experimental data on CMB temperature anisotropies. A couple of packages for download, including a C version of the WMAP likelihood code.
NEWS
previous news
- 10.07.03: I am now in Switzerland. News and features on this page.
- 01.07.03: New 'Talks and posters' page here with abstracts and downloads of slides and posters in PDF format.
- 01.07.03: I have come back from Wales and I have put the slides of my seminar here. I am on my way to Switzeland to write up and any other plans can be found here.
- 28.05.03: Less cluttered navigation. Publications now available here. Also, I have added an online research proposal here.
- 16.05.03: Another update, another design :). I have now written my WMAP page with a C version of the likelihood code for download and some recent results.
List of publications with abstracts and links.
List of talks an posters with abstracts and downloads.
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The Dark energy equation of state
Seminar given at The University of Wales, Swansea, June 2003
Abstract:
In this seminar, I review the origin of the Dark Energy problem. I describe Supernovae measurements and Cosmic Microwave Background measurements. I explain why they lead to some form of Dark energy driving the expansion of the Universe. I describe what properties this dark component should have and the candidates found in the literature so far: The cosmological constant and quitessence-type models.
Then I show what constraints can be obtained from the available cosmological data (before and after WMAP) and I compare them with the new Supernovae results from the High-Z supernova team (Tonry et al.).
I examine a few shortcomings of the observational constraints of dark energy and conclude by looking at the future.
Download the slides in PDF format (1.9MB).
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